Paper-weight and chart-case.



No. 668,870. Patented Feb. 26, I90l.

J. H. CARVER. PAPE R WEIGHT AND CHART CASE.

(Application filed June 22, 1900.

(No Model.)

Fig.4.

TH: uunmspzrsas co, morouwu, WASHINGTON a. c.

ihvrrnn STATES FATENT OFFICE.

JACOB H. CARVER, OF NEW YORK, N. Y.

PAPER-WEIG HT AND CHART-CASE.

$PECIFICATION forming part Of Letters Patent NO. 668,870, dated February26, 190i.

Application filed June 22,1900. Serial No. 21,216. (No model.)

To all whom, it may concern:

Be it known that I, JAooB H. CARVER, a citizen of the United States, anda resident of New York city, borough of Manhattan, in the county of NewYork and State of New York, have invented a new and ImprovedPaper-Weight and Chart-Case, of which the following is a full, clear,and exact description.

My invention relates to an improvement in chart-cases and is alsodesigned for use as a paper-weight. It comprises certain novel parts andcombination of parts, which will hereinafter be particularly pointed outin the claims.

In the drawings accompanying herewith and forming a part of thespecification similar letters of reference indicate the same parts inthe various figures.

Figure 1 is a sectional elevation of my device, taken just within oneside of the casing. Fig. 2 is a sectional elevation taken through themiddle of the case. Fig. 3isa plan view with the chart or belt removed.Fig. at is a detail showing one means for fastening the bottom in thecase. Fig. 5 shows in detail the manner of securing the chart or belt tothe rollers. Fig. 6 shows diagrammatically a different manner of placingthe webs, but using the same mechanism, two webs being used instead ofone.

The object of my invention is to provide a convenient and cheaply-madecase for bolding a roll of paper which shall contain thereon any matterwhich it is desired to make available for quick and convenientreference. This object is secured by means a preferred form of which isherein described. I do not, however, wish to limit myself to aconstruction exactly as herein shown in all respects, as details thereofmight be considerably changed without departing from the spirit of myinvention.

The case within which the paper roll or chart and the means for shiftingit so as to bring any part thereof desired into view are placed, asherein shown, consists of a main portion A, made in the form of a boxwithout either top or bottom except for inwardly-projecting flanges CLaround one edge, a skeleton cover a 0. which is angle-shaped incrosssection and fits within the main portion, and

the glass plates B B, which lie within the flanges a a. An additionalskeleton cover may, if desired, be used instead of. the flange cl.

The frame which contains the mechanism for holding and manipulating theroll is herein shown as made of a single bar or strip D, which is bentand perforated so as to provide suitable support for the various rollsand shafts and to fit snugly within the case. At the corners of the casethis strip is bent upon itself forming arms or projections d, which holdtwo sides of the framethose at the top and bottom of Fig. 3away from thecorresponding side of the case, thus forming recesses or pockets L L,adapted to receive the projecting ends of the rolls and the gears used.It is obvious, however, that the frame may be made of several piecesproperly secured together or of a single piece otherwise shaped; but itshould furnish suitable supports removed sufficiently from two oppositesides for the reception of the various rolls and shafts. J ournaled inthese two opposite sides are the two rolls G G, to which opposite endsof the paper P are secured, and the shafts and rolls necessary to turnthe paperrolls and to guide it in its proper course. In Fig. 2 the paperis shown as wound in about equal amounts upon the two rolls G G. Thecourse of the web P from the left-hand roll in Fig. 2 is first upwardand about a guide roll or bar J, thence just within the upper glasscover B to and about a similar guide roll or bar J, and thence insuccession to and about the two guide rolls or bars J and J which guideit just within the other glass plate 13, so as to expose the other sideof the paper, which is then rolled upon the other roll G. This course ofthe paper exposes both sides of the paper, one at each side of the case.The two rolls G G each have a pinion 7c secured to one end and outsidethe frame D or within the pocket L. Two gears K mesh one with each ofthe pinions, said gears being secured to hollow shafts E, journaled inthe frame D. These shafts besides being hollow have slots 6 in one sideadapted to receive fins or keysf upon rods F, which fit and slide withinthe shaft E. The outer case A has holes permitting these rods to projectfrom the case. As a matter of convenience these rods are shown as havingheads or knobs F,

by which they may be readily turned by hand to thus turn the gears K Kand the rolls G G to wind the paper upon either one desired.

The paper may be secured to the rolls G G in any desired manner. I haveshown a preferred means for securing the paper, which is shown more indetail in Fig. 5. In this construction the rolls are made'in the form ofa tube which has a slot g extending along one side to the end. Withinthis tube is a bar H, which is herein shown as square in cross-section.In putting the paper in place the roll G is removed from its bearing inone side of the frame and raised, so that the bar H may be removed fromwithin the roll, the end of the paper being then passed about the bar H.The bar H is then inserted within the roll G, the paper passing into theslot g. It is thus securely held in place, but may be easily removed, ifdesired.

The removable bottom or cover, whichever it may be considered, is hereinshown as fitting within the body of the case A and secured in place byhaving a slightly-projecting tongue a formed upon two or more of theperipheral flanges a and entering holes a, formed in the side of thecase, as shown in Fig. 4:. Any other means for suitably holding thiscover in place may, however, be adopted, the above being given as anillustration of a desirable means and one which enables the cover to beremoved and then securely replaced whenever desired.

The glass plates B B are held in place between the inner surfaces of theflanges a a and the outer edges of the frame D. The rods F, by which therolls are turned, are in tended to be normally inserted within theshafts E; but when one is to be used it may be drawn out where it may bemore readily turned. In Fig. 3 one is shown in each position. The keysor fins f should be long enough to prevent the rods F from being drawnentirely out of the shafts E.

In using my device one or the other of the shafts E is turned, thuswinding the web upon the roll G, which is connected therewith, andunwinding itin corresponding amount from the other roll G. This causesthe web to travel beneath the glass plate. By turning the other rod Fthe web maybe caused to travel in the other direction. By reversing theposition of the case the opposite side of the web may be examined. It isthus possible to print matter upon both sides of the web and to thusdouble the capacity of the device. The matter printed upon the web maybe any matter to which it may be desirable to refer. The web may also beof paper, cloth, or other suitable material.

In Fig. 2 a single web is shown, which has sections 19 and p exposed infront of the two windows, these sections being connected by a diagonalsection 19, by which arrangement both sides of the web are exposed, onebeing shown at each window, and the web when moving is traveling in thesame direction at each window. With this arrangement both sides of theweb may be printed and exposed to view.

In Fig. 6 an arrangement is shown by which with the same mechanism twowebs are used, and the webs are printed on one side only. In thisarrangement the two shafts F F are used to roll the web upon, and theweb from the roll G, after passing over the guide-rolls J J, is led toand around the shaft F while the web from the roll G, after passing overthe guide-rolls J and J is led to and about the shaft F With thisarrangement there will at times be a certain amount of slack in thewebs; but this will not ordinarily cause any trouble, as it will mostly,if not entirely, be accommodated by the expansion or loosening up of theroll which is turning at an excess speed.

The Whole device is a very convenient and cheap means of large capacityfor making conveniently available any sort of chart, table, or othermatter. In small sizes it also forms an attractive paper-weight, and inlarge sizes it might be used to hold maps or works of reference, whichwould then be printed or mounted upon a large belt. For public librariesand large offices, where such things are often referred to, it wouldrender them accessible without any restraint and yet prevent their beingdamaged by handling.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. A chart-case comprising a case having windows upon two sides, one ofsaid sides being removable and constituting a cover, a removable framefitting within the case,glasses held in position before the windows byengagement of said frame, two rolls journaled in the frame, a web orband having its ends secured to said rolls, means for turning eitherroll to wind the band thereon, and means for reversing the exposedsurface of the band in its passage from one window to the other.

2. A chart-case having a window, a frame fitting within the case andhaving two sides offset inwardly, a glass held before the window betweenthe frame and case, two rolls journaled in the case, a gear-trainconnected with each roll and lying between the ofiset side of the frameand the side of the case, a telescopic shaft for the driving member ofeach gear-train, one member of the shaft being adapted to project fromthe case, and a web or band having the chart thereon and connected withthe rolls.

3. A chart-case having two opposite windows, a frame fitting within thecase and having two opposite sides offset, glasses between said frameand the windows, two rolls journaled in the offset sides of the frame,means for turning said rolls, a web or band having its ends secured tosaid rolls, and guide-rolls journaled in the same sides of the frame andV adapted to convey the web in succession before each window and withboth sides moving in the same direction.

4. A chart-case having a removable cover, windows formed in said coverand in the side opposite, aframe fitting snugly in the case, glassesloosely lying before the Windows and held in place by engagement withframe and case, and means carried by said frame for supporting andguiding a web before both windows.

5. A chart-case having a removable cover provided with a Window, varemovable frame fitting snugly Within the case, a glass fitting the caseand held in place before the window by contact with the adjacent sidesof the frame and the cover, a web, rolls journaled in said framecarrying and guiding the Web before said Window, and means for rollingup either end of the web.

6. A chart-case having two windows upon difierent faces, one of thesides containing a window constituting a removable cover, a framefitting within said case, glasses held in front of the Windo Ws byengagement with said frame, two rolls journaled in the frame,means forturning said rolls, a Web secured by its ends to said rolls and havingthe chart thereon and guides for said web carried by the frame andadapted to convey the web firstin front of one window, then back to theopposite end of the other Window and then in front of said other Window,the sections of web in front of each window both traveling in the samedirection.

J. H. CARVER.

Witnesses:

H. L. REYNOLDS, A. B. AHRENS.

